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December 23, / 999 • . Page 22 <br />' total concentration of any parameter exceeds the corresponding concentration on the "TCLP list," <br />that parameter will be re-run using the TCLP laboratory analysis method. <br />' American Soda will provide the results of the hazardous waste testing to BLM, EPA, and <br />' CDMG upon completion of their review. After the preliminary evaluation, the "Part 262.11" <br />review will be performed on an as-needed basis (i.e., when raw materials are changed, processes <br />' are modified, etc.). <br />4.3 Solution and Cooling Ponds <br />' The solution and cooling ponds associated with the test mine facility (Figure 1) are <br />protected against leakage by a double geosynthetic liner and geonet leak detection and collection <br />' system (LDCS), which is currently monitored twice per shift. The freeboard of the dams is also <br />measured once per day. Monthly water level measurements and water quality samples will be <br />' collected from the alluvial monitoring wells 21-2, 28-1, and 21-5. <br />During commercial operations, alluvial monitoring well 19-3 (located downstream of the <br />' proposed evaporation pond at the upper plant) will be used to monitor for potential pond leakage. <br />This well was designed and constructed in accordance with recommendations of the BLM. <br />' Several alluvial monitoring wells are in existence at the Parachute Creek plant site. These <br />wells were installed and monitored previously by Unocal as par[ of their environmental protection <br />' program. One or more of these wells (or well 34-1) could serve as monitoring wells for the pond <br />system to be constructed at the Parachute Creek (Unocal) site. <br />' 4.4 Pipeline Monitoring <br />The pipeline that transports process solution and recycled water between the Piceance Site <br />' and Parachute Site will be monitored. The parameters and related sampling frequencies are listed <br />in Table 7. <br />1 <br />1 <br /> <br />1 <br /> <br /> <br />Agapito Associates, Inc. <br />